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WAEC Chemistry 2018 Theory — Question 4

Question 4 of 24 from the West African Examinations Council (WAEC) Chemistry 2018 Theory paper, with the correct answer and a full explanation.

1.(d) Name one: (i) Heavy chemical used in electrolytic cells; (ii) Fine chemical used in textile industries.

Model answer

(i) Tetraoxosulphate(VI) acid, H₂SO₄ (or sodium hydroxide). (ii) A dye.

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